TABLE 1.

Detection of H. ducreyi DNA by PCR from bubos and ulcers compared to serologic tests from five patients with GUD

Patient	PCR results				Serology results
	Bubo		Ulcer		LOS	Adsorption EIA
	groEL	recD	groEL	recD
1a	−	−	+	−	−	+
2	+	+	−	+	+	+
3	+	+	−	NS	+	+
4	−	NSb	−	NS	−	+
5	+	NS	+	NS	+	+

^aThis was the only sample among the 42 tested by both PCR assays that was positive by the groEL PCR and negative by the recD PCR assay. 

^bNS, specimen was not sufficient.